Hello i also think this is a boar spear. 
 
If you search for "Saufeder" (that's the german term) you will find a lot of examples. 
btw. the typical Saufeder has no metal bars but a piece of antler fixated with a leather wrap just below the metal fitting. 
At this position the wood of the presented spear seem to be roughened as to provide better grip for such a leather wrap. 
 
Best Regards 
Thilo
		 
		
		
		
		
		
		
		
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